PA66 (Nylon 66) vs PP GF30: 0% composition overlap. Significantly different materials serving different application areas.
PA66 (Nylon 66) vs PP GF30
Side-by-side chemical composition and mechanical property comparison.
Overview
PA66 (Nylon 66)
Polyamide 66 — stiffer and more heat-resistant than PA6. Higher crystallinity gives better creep resistance and ~40°C higher melting point (260°C vs 220°C). Slightly more brittle. More moisture-sensitive at saturation than PA6. Trade names include Ultramid A (BASF), Zytel 101 (DuPont), Tecamid 66 (Ensinger). Dominant in US/UK markets. Used for automotive engine components, electrical connectors, gears, cable ties, and industrial bushings.
PP GF30
Polypropylene with 30% short glass fiber — a cost-effective alternative to PA GF30 for applications up to ~130°C. Much cheaper base resin (PP vs PA), zero moisture sensitivity, and excellent chemical resistance. Lower strength than PA6 GF30 (UTS 80 vs 175 MPa) but sufficient for many structural parts. Trade names include Celstran PP-GF30 (Celanese), Tepex (LANXESS), Stamax (SABIC). Used for automotive front-end carriers, battery trays, HVAC components, and household appliance frames.
| PA66 (Nylon 66) | PP GF30 | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 10350 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PA66 (Nylon 66) | PP GF30 | Overlap |
|---|---|---|---|
| Hexamethylenediamine unit | 45–55% | — | — |
| Adipic Acid unit | 45–55% | — | — |
| Polypropylene (Base Polymer) | — | 68–72% | — |
| Glass Fiber Reinforcement | — | 28–32% | — |
Mechanical properties — Pro
| Property | PA66 (Nylon 66) | PP GF30 | Unit |
|---|---|---|---|
| Tensile Strength | 80–90 | 70–90 | MPa |
| Yield Strength | 80–85 | — | MPa |
| Elongation | 15–40 | 3–5 | % |
| Elastic Modulus | |||
| Density | |||
| Melting Point | |||
| Glass Transition Temp (Tg) | |||
| Water Absorption (24h) | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched) | |||
| Density | |||
| Melting Point | |||
| Glass Transition Temp | |||
| Water Absorption (24h) | |||
| Water Absorption (saturation) | |||
| hdt_1_8mpa |
Sign up free and get 3 full comparisons immediately.
Sign up free — 3 comparisons/day freeCompatibility Assessment
PA66 (Nylon 66) and PP GF30 have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PA66 (Nylon 66) the same as PP GF30?
PA66 (Nylon 66) and PP GF30 have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PA66 (Nylon 66) with PP GF30?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PA66 (Nylon 66) and PP GF30?
The main differences are in the following elements: overall alloying content. PA66 (Nylon 66) is a Polymers grade, while PP GF30 is a Polymers grade.
Related Comparisons
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.